After Run command I was prompted for Emulator to choose and none was enabled. After going to new device and selecting each and every OS I noticed something about Hyper-V that needs to be disabled. I did, restarted, and downloaded Emulator or something. Now when I run and select it I have Android on the screen. Studio says, waiting for device to come online. Android is totally black. Is downloading something else? Although, it’s been a while … Oh, after 10 min. Android says Android is starting… or Installing Application… Back to Studio error message:
Installation failed with message Failed to finalize session : Unknown failure (Error: Could not access the Package Manager. Is the system running?).
It is possible that this issue is resolved by uninstalling an existing version of the apk if it is present, and then re-installing.
WARNING: Uninstalling will remove the application data!
Do you want to uninstall the existing application?
Background process: Installing APKs.
I oked uninstall. Running it again. Got black Android, nothing else, although when I started new application I added Setting screen.